The Ideberg classification is a system of categorizing scapula fractures involving the glenoid fossa.
The glenoid cavity or glenoid fossa of scapula is a part of the shoulder. It is a shallow, pyriform articular surface, which is located on the lateral angle of the scapula. It is directed laterally and forward and articulates with the head of the humerus; it is broader below than above and its vertical diameter is the longest.
| Type | Description |
|---|---|
| Ia | Anterior rim fracture |
| Ib | Posterior rim fracture |
| II | Fracture through glenoid exiting scapula laterally |
| III | Fracture through glenoid exiting scapula superiorly |
| IV | Fracture through glenoid exiting scapula medially |
| Va | Combination of types II and IV |
| Vb | Combination of types III and IV |
| Vc | Combination of types II, III and IV |
| VI | Severe comminution |
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